In the northern Atlantic Ocean, copepods are the primary prey for a range of species — fueling schools of herring and powering pods of endangered northern right whales. This and other Calanus species are such vital intermediary links in the marine food web that changes in their populations could profoundly affect the health of marine animals — from leaner fish of lesser value to fewer whale calves — and the structure of the pelagic ecosystem in northern oceans. That’s why Andrew Pershing and Jeffrey Runge, research scientists who hold joint appointments with the University of Maine and the Gulf of Maine Research Institute, study them.

Provided by the University of Maine

Runtime: 2:50

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